This article is based on an official press release from Liebherr-Aerospace.

Liebherr-Aerospace Deploys REACH-Compliant Coating Process Across Asian Service Centers

Liebherr-Aerospace has announced the successful industrialization of a new, environmentally sustainable coating process for aircraft heat transfer equipment at its Singapore service center. According to the company, this new method replaces traditional hazardous materials with a safer alternative that complies with stringent European Union regulations.

The aerospace manufacturers and MRO (Maintenance, Repair, and Overhaul) provider confirmed that the process, known as a Trivalent Chromium System (TCS) combined with a Post Application Conversion Sealer (PACS), is now operational in Singapore. Furthermore, the company plans to expand this capability to its facility in Shanghai, China, with implementation scheduled for the first quarter of 2026.

Transitioning Away from Hexavalent Chromium

The core of this operational shift involves replacing Hexavalent Chromium (Cr6+), a standard corrosion inhibitor historically used in aerospace manufacturing but known for its toxicity and carcinogenic properties. In response to global regulatory pressures, particularly the EU’s REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) regulation, Liebherr has adopted a safer chemical alternative.

According to technical details released by the company, the new process utilizes Trivalent Chromium (Cr3+). While Cr3+ is significantly less toxic, it has historically struggled to match the corrosion resistance and “self-healing” properties of its hexavalent predecessor. To bridge this performance gap, Liebherr utilizes a Post Application Conversion Sealer (PACS), which reinforces the coating to meet the durability standards required for aerospace components.

Validation and Partnerships

Liebherr-Aerospace noted that this specific TCS and PACS process was first qualified and validated at its OEM facility in Toulouse, France. The transfer of this technology to the MRO network ensures that repairs performed in Asia meet the same original equipment standards as those in Europe.

For the Singapore deployment, the company collaborated with Applied Total Control (ATC), a long-term surface treatment partner. This collaboration allowed for the successful integration of the new coating line into the local MRO workflow.

Regional Expansion Strategy

The adoption of REACH-compliant processes in Asia is a strategic move to align Liebherr’s global service network with European standards. The Singapore facility, which serves as a hub for the Asia-Pacific region, recently celebrated completing its 5,000th heat transfer equipment repair. By establishing the process there first, the center acts as a training ground for the wider network.

According to the press release, staff from Liebherr (China) Co., Ltd. in Shanghai have already undergone training in Singapore. This preparation is intended to facilitate a smooth rollout of the coating process at the Shanghai service center in Q1 2026. This expansion supports Liebherr’s strategy to provide “in-region” support for Chinese airlines, reducing the need to ship components back to Europe for compliant repairs.

“The integration of the REACH compliant TCS and the PACS coating process marks a significant step towards a more sustainable customer service… We comply with the regulations applicable in the EU and in the APAC region, which avoids regulatory risks and delays in aircraft operation.”

, Joël Cadaux, General Manager Aerospace at Liebherr-Singapore Pte Ltd.

AirPro News Analysis

The implementation of EU-centric regulations like REACH in Asian MRO facilities highlights the global nature of the aerospace supply chain. While REACH is technically a European regulation, European OEMs (such as Airbus) and global airlines often mandate compliance across their entire fleet to ensure uniformity and avoid legal complications.

By proactively upgrading facilities in Singapore and China, Liebherr mitigates the risk of “sunset dates”, regulatory deadlines after which the use of hexavalent chromium is prohibited without special authorization. This move likely positions Liebherr to capture maintenance contracts from carriers that prioritize environmental compliance and supply chain continuity, distinguishing them from competitors who may still rely on older, restricted chemical processes.

Frequently Asked Questions

What is REACH?

REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) is a European Union regulation adopted to improve the protection of human health and the environment from the risks that can be posed by chemicals.

Why is Hexavalent Chromium being replaced?

Hexavalent Chromium is a known carcinogen and mutagen. Regulations are increasingly restricting its use to protect workers and the environment from toxic waste and exposure.

Does the new coating affect part performance?

According to Liebherr, the combination of Trivalent Chromium and the PACS sealer has been validated to meet the necessary corrosion resistance and adhesion standards required for airworthiness.

Sources

• Liebherr-Aerospace